Amazon.co.jp bestseller analysis · monthly
Where Japan's
bestseller lists are moving.
For sellers and brands choosing what to stock next. Each category gets its typical price band, how many top sellers still have few reviews (room for a new listing), how fast the list turns over, and which products are climbing.
–products tracked
–top categories
–period
Category overview
Sorted by turnover. High turnover plus many low-review sellers = easiest category to break into.
| Category | Ranked | Typical price | Median rating | Median reviews | Under 50 reviews | Turnover |
|---|
Biggest climbers
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Monthly report
¥4,980/月
All 30+ categories and their sub-categories, top 20 climbers each, month-on-month price and review trends, PDF + CSV of the aggregates.
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The report plus the member resale list and weekly alerts.
Turnover compares the first and last day of the period, so it fills in as more days are collected. Built from public bestseller pages; not affiliated with Amazon.